NUR 210 EXAM 1 PRINCIPLES OF PHARMACOLOGY LATEST
2026 2027 GALEN TESTED QUESTIONS WITH REVISED
CORRECT ANSWERS
SECTION 1: PHARMACOKINETICS AND PHARMACODYNAMICS
Question 1
A patient is prescribed a medication that has a high first-pass effect. The provider
changes the route of administration from oral to intravenous (IV). What is the expected
outcome of this route change?
A. The medication will have a slower onset of action.
B. The medication will require a higher dose to achieve the same therapeutic effect.
C. The medication will bypass hepatic metabolism initially, resulting in higher
bioavailability.
D. The medication will be excreted more rapidly by the kidneys.
Correct Answer: C
Rationale: The first-pass effect occurs when oral medications are absorbed in the GI
tract and transported directly to the liver via the portal vein, where a significant portion
is metabolized before reaching systemic circulation. By changing the route to IV, the
medication bypasses the GI tract and the initial hepatic metabolism, resulting in a
much higher bioavailability and faster onset.
Question 2
, A nurse is reviewing the therapeutic index of two medications. Medication A has a
narrow therapeutic index, while Medication B has a wide therapeutic index. What does
this indicate to the nurse?
A. Medication A has a higher risk of toxicity and requires closer monitoring.
B. Medication B is more effective than Medication A.
C. Medication A is safer than Medication B.
D. Medication B requires a prescription, while Medication A is over-the-counter.
Correct Answer: A
Rationale: The therapeutic index is the ratio between the toxic dose and the therapeutic
dose. A narrow therapeutic index means there is a small margin of safety between a
dose that is effective and a dose that is toxic. These medications (like lithium, digoxin,
or warfarin) require precise dosing and frequent monitoring of blood levels.
Question 3
A medication has a half-life of 4 hours. Approximately how long will it take for this
medication to reach a steady state in the patient's body?
A. 4 hours
B. 8 hours
C. 12 hours
D. 20 hours
Correct Answer: D
Rationale: It generally takes 4 to 5 half-lives for a medication to reach a steady state
(the point at which the amount of drug entering the body equals the amount being
eliminated). 4 hours multiplied by 5 equals 20 hours.
Question 4
A patient with liver cirrhosis is prescribed a medication that is highly protein-bound.
Which pathophysiological alteration in this patient will most significantly alter the
pharmacokinetics of this medication?
2026 2027 GALEN TESTED QUESTIONS WITH REVISED
CORRECT ANSWERS
SECTION 1: PHARMACOKINETICS AND PHARMACODYNAMICS
Question 1
A patient is prescribed a medication that has a high first-pass effect. The provider
changes the route of administration from oral to intravenous (IV). What is the expected
outcome of this route change?
A. The medication will have a slower onset of action.
B. The medication will require a higher dose to achieve the same therapeutic effect.
C. The medication will bypass hepatic metabolism initially, resulting in higher
bioavailability.
D. The medication will be excreted more rapidly by the kidneys.
Correct Answer: C
Rationale: The first-pass effect occurs when oral medications are absorbed in the GI
tract and transported directly to the liver via the portal vein, where a significant portion
is metabolized before reaching systemic circulation. By changing the route to IV, the
medication bypasses the GI tract and the initial hepatic metabolism, resulting in a
much higher bioavailability and faster onset.
Question 2
, A nurse is reviewing the therapeutic index of two medications. Medication A has a
narrow therapeutic index, while Medication B has a wide therapeutic index. What does
this indicate to the nurse?
A. Medication A has a higher risk of toxicity and requires closer monitoring.
B. Medication B is more effective than Medication A.
C. Medication A is safer than Medication B.
D. Medication B requires a prescription, while Medication A is over-the-counter.
Correct Answer: A
Rationale: The therapeutic index is the ratio between the toxic dose and the therapeutic
dose. A narrow therapeutic index means there is a small margin of safety between a
dose that is effective and a dose that is toxic. These medications (like lithium, digoxin,
or warfarin) require precise dosing and frequent monitoring of blood levels.
Question 3
A medication has a half-life of 4 hours. Approximately how long will it take for this
medication to reach a steady state in the patient's body?
A. 4 hours
B. 8 hours
C. 12 hours
D. 20 hours
Correct Answer: D
Rationale: It generally takes 4 to 5 half-lives for a medication to reach a steady state
(the point at which the amount of drug entering the body equals the amount being
eliminated). 4 hours multiplied by 5 equals 20 hours.
Question 4
A patient with liver cirrhosis is prescribed a medication that is highly protein-bound.
Which pathophysiological alteration in this patient will most significantly alter the
pharmacokinetics of this medication?
